April 2, 2007

TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS), a leading provider of mission-critical wireless data solutions, today announced it has been named to HSToday's (Homeland Security Today's) prestigious "Rising 10 Homeland Security Companies" list. This prominent listing recognizes companies that show "promise for rapid growth of their homeland security work in the future" and highlights companies for "their positioning in nascent fields of homeland security." The award honors the companies that reflect the innovative spirit and technologies being applied in the field of homeland security.

TCS meets the IT and communication needs of the government and military with innovative services as well as customized, highly reliable deployable communication products and solutions. Such solutions include its SwiftLink(R) secure deployable communications systems, professional IT services, enterprise wireless solutions, location-based services and long-haul communications.

"We are proud to support the Department of Homeland Security and other homeland security efforts with mission-critical, secure communications," said Maurice B. Tose, Chairman, President and Chief Executive Officer of TeleCommunication Systems. "Our SwiftLink deployable communications suite enables seamless and secure communications for voice, video and data, and we back our customers with 24-hour support."

To view the complete list of HSToday companies to watch, visit: www.hstoday.us.

Since it began publishing in May 2004, HSToday, which is delivered to over 30,000 homeland security officials at the federal, state and local levels, has been cited by members of Congress, been used as a source of expertise by its readers and the general media, and has won praise across the country for the depth of its information and overall editorial excellence.

ABOUT TELECOMMUNICATION SYSTEMS, INC.

TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS) produces wireless data communications technology solutions that require proven high levels of reliability. TCS provides wireless and VoIP E9-1-1 network-based services, secure deployable communication systems and engineered satellite-based services, and commercial location applications, like traffic and navigation, using the precise location of a wireless device. Customers include leading wireless and VoIP operators around the world, and agencies of the U.S. Departments of Defense, State, and Homeland Security. For more information, visit http://www.telecomsys.com.

Except for the historical information contained herein, this news release contains forward-looking statements as defined within Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities and Exchange Act of 1934, as amended. These statements are subject to risks and uncertainties and are based upon TCS' current expectations and assumptions that if incorrect would cause actual results to differ materially from those anticipated. Risks include those detailed from time to time in the Company's SEC reports, including the report on Form 10-K for the year ended December 31, 2006. [After we file the first quarter 10-Q, we will insert, "and the most recent Form 10-Q."]

Existing and prospective investors are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. The Company undertakes no obligation to update or revise the information in this press release, whether as a result of new information, future events or circumstances, or otherwise.